I have the stock Kicker system that came on the 2008 LSV (2 amps, a ZX200.4 that powers the 6 Kicker cabin speakers and a ZX250.2 that powers the 4 KM620.2 tower speakers) I was getting a blown bass sound from some of the tower speakers so I bought some replacement NOS KM620.2's and the system sounded great for 2 weeks... Now I am back to the blown bass sounds again and I am wondering whats going on... The stock system is fine for me and my family but I dont want to keep swapping out the tower speakers... Should I get a different (resonably priced) tower setup or can the speakers I have be repaired somehow? Is the ZX250.2 too much for these speakers? I am an audio novice so any help is appreciated...